Roof-pipe connection.



C. L. HOLT.

ROOF PIPE CONNECTION.

APPLIoATIoN 1111.111) s119121, 1912.

Patented A111122, 1913. E

i in it ROOF-PIPE CONNECTION.

weeen.

Specification of Letters Patent.

Patented Apr. 22, 1913.

, Application len'slepteniper 21, 1912. Serial No. 722,657.

.ldrainha roof-plate, having a water-tight ,connectionwith-.the roof,.is connected by a.

,soldered jointto .the end of the pi e, which terminates .-at the level of the, roo It frequentlyhappensthat this soldered joint is b noken. .by relative `n iovement of, the pipe and root, either d ue vto the settling of the roof with relation to thepipe or :the 4settling ofthepipewithrelation to the roof. Irrthe device .of my priorl Patent 760,790, I at- ,.te mptedto .obviatethis Edi culty by providingan eXpanSionjoint ,between the roof ,connection .and the pipebelow, the purpose ofwhichwas torelieve the strain on the sol- -deredjointin case of relative movement ot .the roof andthe pipe. In practice, h ow- .ever,.it.,`wasl foundE that theA frictional en gagement between. the parts ofthe eXpans1on Joint. Wasn frequently, so great, in case of ,such,'rnovement,i than an undue strain was placedonzthe solderedjoint, causing it 'to be opened and. leakage to occur.

The object of my invention is to provide a form .of roof connection in which the applieationof an appreciable strain upon the .soldered joint. between the pipe and the rnofsplate is prevented, in case V.of relative .1novement,of .t he roof andithepipe, and in p caseconsiderableforce is requlred to cause relative movement of-the members of the expansion, joint.

= A,fur.tl1er object of my invention is to lprov-ide, an improved form of expansion joint rforuse in;this ,connection.

i' Laccomplish these obJects by the means shownin the accompanying drawing, in

which,

:."Jlifigure 1 is a central vertical cross-section 1ct, a mofconnection and expansion joint made accordingto my, invention. Fig. 2 is a ,sectional view ,on the line 2 2 ,of Eig. 1, looking in the direction'of. the arrows. Fig. 3 is a top 'plan view of the roof collar and pipe. Fig. 4 is a section on the line .4-4, of Fig. 3.

In the drawing, a indicates theY roofof a building to which the drain-pipe'js to be connected. According to my lnvention'l'I provide a roof collar b Vwhich is otsuiicient length to extend through the roof and is provided with an outwardl attending iange b at its upper end, and7 twoA oppositely disposed lugs b2, which extend 1n a similar manner to the flange b', at ,its lower end. A roof-pipe c is provided vwhich is preferably of brass, so .that a soldered connection may be made therewith. .This pipe is fitted in the collar. b, and `isrigidly secured thereto by means of rivets .d which extend through the middle portion ofthe collar. Said pipe terminates, 'at its u )per end, a short distance above ,the level the flange b and extends somedistance below the collar at its lower end. Said pipe 'cis adapted to be connected at its lower 4end to may be described as follows. A.sectin e pf the soil-pipe from which .the hubhas been removed,-is connected to a coupling-ring, f, by inserting one end of the pipe eintof'an annular recess f', formed in the lower end thereof and making a rigid, tight connection therewith by driving in lead or qakum in the usual manner. The upper end ofthe ring f is provided with an annular packing recess f2, in which a packingl tis placed, and a gland g is provided, which is adapted to compress the packing therein, clampin bolts h being provided which engage Sai gland and a fiange f3 on the ring. IThe pipe e is adapted t'o slide telescopicallyinithe ring f and pipe e, a stuffing-box connection being thus provided therebetween.

In practice the carpenter-work of placing the roof on a building which is in process of construction is usually done some time before the plumbing-work is done, so'that the carpenter is supplied with a pipe c, to which a collar b has been attached, and cuts a circular hole through the roof, at the proper point, the diameter of which is approximately equal to the external. diameter of the collar b between the. flange b and lugs b2. He also cuts a pair of 'notches a ythe soil-pipe by an expansion joint,- v

in the roof which lead from this lioleat diavio has been cut in such a position that the lugs b2 pass through the notches a', and the upper flange b rests on the upper surface of the roof. The collar is then turned quarter way around as indicated in Fig. 2, so that the lugs b2 are out of alinement with the notches a. The roofer then connects an ordinary roof-plate i to the protruding upper end of the pipe c by means ot a soldered joint i, as indicated in Fig. l, said plate being also connected by a water-tight joint to the surface of the roof by suitable means according to the form of roof coverinvililsed.

4 en thel vdrain-pipe is installed, the plumber cuts off the pipe c to a suitable length and connects one end to the ringf by a calked joint, as before described. The gland g is then placed on the pipe c and the ring f and pipe e are slid up on the pipe c and ythen the pipe e is seated in the hub of the drain-pipe section m, next below and connected thereto by a calked joint in the usual manner. 'The gland g is then drawn down by the nuts on the bolts 7c, so that a water-tight joint is formed between the pipe c and the pi e e.

The parts aving been connected as above described, in case the roof should settle with relation. to the soil-pipe e, it will press upon the lugs b2 and will force the pipe c downwardly through the stuiing-'box of ring f, and even if there is a strong frictional-engagement between the pipe e and'the stuffing-box packing, the application of the force necessary to force down the pipe will not -in any way strain the joint z' on account of the rigid connection between the collar b and both the root` and the pipe-e. In case the pipe e should settle with relation to the roof, there would be a downward pull on the pipe c through the stuing-boxy ring f and the strain of the pull necessary to cause the ring fto be slid on pipe e will all be placed on the upper flange b' of the collar b, and no strain whatever would be placed' upon the soldered joint z'. It therefore follows that under no conditions can relative movement of the roof and soil-pipe. place any sti-ain on the joint i', and all probability that this joint will be opened from this cause is o bviated. By\ providing the stuing-box ring f with a packing recess to receive the pipe e, a tight, rigid connection may be provided therebetween which can be readily made. 'c

While this form of connection is especially advantageous where the roof-plate is connected to the pipe at a level with its upper end, as above described, it is also advantageous when the pipec is extended some distance above the level of the roof when4 the pipe is used as a vent pipe, as will be obvious.

While' I prefer to provide the roof collar havi with the particularmeans`- disclosed to 'holdV the saine against vertical movement iiifthe. roof, other means may be provided' which will rform the saine function. l c

' The particular form of couplingcollar f disclosed forms a convenient and eective means lfor connecting the roof pipe with the pipe below and providing a slidable connection therebetween.

I' claim f collar, adapted to extend thro means to hold said collar against vertical movement iii either direction in the roof, a pipe rigidly connected to said collar, means to provide a water-tight connection between said ipe and the surface of the roof and a 'e dable connection for the lower end of said pipe, substantially as described.

2. In combination with the roof' of a building, a roof-pipe passing therethro h and terminating adjacent the surface of t e roof, means for rigidly connecting said pipe .to the roof to hold the same against vertical movement in either direction with relation to the roof, a roof-plate having a watertight connection with the upper end of said pipe, and a drain-pipe having a yieldable connection with the lower end thereof, substantially as described.

3. A roof connection comprising a collar adapted to extend through the roof and.

having means" for holding the same from 1. A roof connection comprising a roof 75 h the roof,

vertical movement in either direction therein, a pipe extending through said collar and a rigid' connection therewith, a roofplate aving a soldered connection with the upper end of said pipe and a drain pipe having a yieldable connection for the lower end of said pipe, substantially as described.

4. A roof connection comprising a collar adapted to extend through the roof, and having transverse projections arranged to engage the upper and under sides` thereof to hold the collar from vertical movement in either direction therein, a soil-pi e extending through said collar and rigi secured thereto, a roof-plate having a sol ered `connection with the'upper end of said pipe 4secured t erein, a roof-plate having a watertight connection with said pipe at its up er end and extending over 1said ange, an a drain pipe having a yieldable connection with the'lower end of said pipe, substantially as described.

lll

6. In combination with a roof having a circular aperture therethrough and notches leading from said aperture, a collar arrangedin said aperture and having a vsupporting flange at its upper end resting on the rootl and lugs at its lower end adaptedto pass through said notches and to be moved out of register therewith to hold the collar from vertical movement in either direction, a pipe extending through said collar and having a rigid connection therewith, a roofplate having a4 Water-tight connection with the upper end of said pipe and with the roof and extending over sald flange, and a yieldable connection with the lower end oit said pipe, substantially as described.

7. In combination with a roof, a roof-pi extending therethrough means to hold said pipe rigidly against vertical movement i'n either dlrection with relation to the roof, a

roof-plate having awater-tight connection with said pipe and with the surface of the roof, a coupling ring on the lower end of said .pipe having a stuffing-box connection therewith at its upper side and having a drainpipe receiving recess in its under side, and a drain-pipe seated in said recess and having a rigidly packed connection therewith, said roof pipe being adapted to slide telescopically in said ring and said drain-pipe, substantially as described,

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

IQHARLES L. HoLT.

Witnesses HARRY R. LAWRENCE, JOHN J. BUNTING. 

